Cold-formed steel sections have become competitive structural components in the modern
building construction due to their inherent favourable characteristics over conventional hot-rolled
steel members. A wide range of products, with a multiplicity of shapes, sizes, and
applications typically manufactured with perforations to facilitate various services:
electrical, plumbing, and heating, etc., are produced using simple and cost-effective
industrialised processes. Cold-formed members are thin, light, and economically efficient.
However, the advantages of these members are often limited due to the presence of
perforations and susceptible to various buckling modes such as local, distortional, flexural,
and torsional-flexural buckling which sometimes are not predicted. This research work
provides a general insight into cold-formed steel and buckling, and investigates the influence
of perforations on the buckling behaviour of cold-formed column members of lipped channel
cross-section using experimental study, finite element analysis, and design code predictions.